CASPER: Concordia atmospheric spectroscopy of emitted radiation

M. De Petris, A. Catalano, S. De Gregori, L. Lamagna, V. Lattanzi, G. Luzzi, R. Maoli, A. Melchiorri, F. Melchiorri, G. Savini, G. G. Vetrani, E. S. Battistelli, L. Valenziano, N. Mandolesi, F. Villa, F. Cuttaia, P. A R Ade, Philip Mauskopf, A. Orlando, P. EncrenazJ. R. Pardo, J. Cernicharo

Research output: Chapter in Book/Report/Conference proceedingConference contribution

2 Citations (Scopus)

Abstract

CASPER (Concordia Atmospheric Spectroscopy of Emitted Radiation) is a spectrometer proposed for installation at Dome C, devoted to measurements of atmospheric emission in the spectral region between 180 μm and 3 mm (3-55 cm-1). This instrument will be able to perform continuous spectral sampling at different altitudes at angular scales of ∼1°. From the recorded data it is possible to extract atmospheric transmittance within 1% in the whole wide operating band, together with water vapour content and O 2 and O3 concentrations. CASPER will allow us to characterize the site for future FIR/mm telescopes. Atmospheric data recorded by CASPER will allow for correction of astrophysical and cosmological observations without the need for telescope-specific procedures and further loss of observation time with more precision in the observations themselves. Calibration of ground-based telescopes on known sky sources is strongly affected by atmospheric absorption. CASPER has this as its primary goal. The spectrometer is based on a Martin-Puplett interferometer. Two data sampling solutions will be performed: phase modulation & fast scan strategy. Sky radiation is collected towards the interferometer by an optical setup that allows the field of view, to explore the full 0 ÷ 90° range of elevation angles. With a low spurious polarization instrument, monitoring of polarized atmospheric contribution will be possible.

Original languageEnglish (US)
Title of host publicationEAS Publications Series
Pages233-238
Number of pages6
Volume14
DOIs
StatePublished - 2005
Externally publishedYes
EventDome C Astronomy and Astrophysics Meeting - Toulouse, France
Duration: Jun 28 2004Jun 30 2004

Publication series

NameEAS Publications Series
Volume14
ISSN (Print)16334760
ISSN (Electronic)16381963

Other

OtherDome C Astronomy and Astrophysics Meeting
CountryFrance
CityToulouse
Period6/28/046/30/04

Fingerprint

Atmospheric radiation
Spectroscopy
Radiation
Telescopes
Interferometers
Spectrometers
Sampling
Antenna grounds
Phase modulation
Domes
Water vapor
Calibration
Polarization
Monitoring

ASJC Scopus subject areas

  • Engineering(all)

Cite this

De Petris, M., Catalano, A., De Gregori, S., Lamagna, L., Lattanzi, V., Luzzi, G., ... Cernicharo, J. (2005). CASPER: Concordia atmospheric spectroscopy of emitted radiation. In EAS Publications Series (Vol. 14, pp. 233-238). (EAS Publications Series; Vol. 14). https://doi.org/10.1051/eas:2005036

CASPER : Concordia atmospheric spectroscopy of emitted radiation. / De Petris, M.; Catalano, A.; De Gregori, S.; Lamagna, L.; Lattanzi, V.; Luzzi, G.; Maoli, R.; Melchiorri, A.; Melchiorri, F.; Savini, G.; Vetrani, G. G.; Battistelli, E. S.; Valenziano, L.; Mandolesi, N.; Villa, F.; Cuttaia, F.; Ade, P. A R; Mauskopf, Philip; Orlando, A.; Encrenaz, P.; Pardo, J. R.; Cernicharo, J.

EAS Publications Series. Vol. 14 2005. p. 233-238 (EAS Publications Series; Vol. 14).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

De Petris, M, Catalano, A, De Gregori, S, Lamagna, L, Lattanzi, V, Luzzi, G, Maoli, R, Melchiorri, A, Melchiorri, F, Savini, G, Vetrani, GG, Battistelli, ES, Valenziano, L, Mandolesi, N, Villa, F, Cuttaia, F, Ade, PAR, Mauskopf, P, Orlando, A, Encrenaz, P, Pardo, JR & Cernicharo, J 2005, CASPER: Concordia atmospheric spectroscopy of emitted radiation. in EAS Publications Series. vol. 14, EAS Publications Series, vol. 14, pp. 233-238, Dome C Astronomy and Astrophysics Meeting, Toulouse, France, 6/28/04. https://doi.org/10.1051/eas:2005036
De Petris M, Catalano A, De Gregori S, Lamagna L, Lattanzi V, Luzzi G et al. CASPER: Concordia atmospheric spectroscopy of emitted radiation. In EAS Publications Series. Vol. 14. 2005. p. 233-238. (EAS Publications Series). https://doi.org/10.1051/eas:2005036
De Petris, M. ; Catalano, A. ; De Gregori, S. ; Lamagna, L. ; Lattanzi, V. ; Luzzi, G. ; Maoli, R. ; Melchiorri, A. ; Melchiorri, F. ; Savini, G. ; Vetrani, G. G. ; Battistelli, E. S. ; Valenziano, L. ; Mandolesi, N. ; Villa, F. ; Cuttaia, F. ; Ade, P. A R ; Mauskopf, Philip ; Orlando, A. ; Encrenaz, P. ; Pardo, J. R. ; Cernicharo, J. / CASPER : Concordia atmospheric spectroscopy of emitted radiation. EAS Publications Series. Vol. 14 2005. pp. 233-238 (EAS Publications Series).
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abstract = "CASPER (Concordia Atmospheric Spectroscopy of Emitted Radiation) is a spectrometer proposed for installation at Dome C, devoted to measurements of atmospheric emission in the spectral region between 180 μm and 3 mm (3-55 cm-1). This instrument will be able to perform continuous spectral sampling at different altitudes at angular scales of ∼1°. From the recorded data it is possible to extract atmospheric transmittance within 1{\%} in the whole wide operating band, together with water vapour content and O 2 and O3 concentrations. CASPER will allow us to characterize the site for future FIR/mm telescopes. Atmospheric data recorded by CASPER will allow for correction of astrophysical and cosmological observations without the need for telescope-specific procedures and further loss of observation time with more precision in the observations themselves. Calibration of ground-based telescopes on known sky sources is strongly affected by atmospheric absorption. CASPER has this as its primary goal. The spectrometer is based on a Martin-Puplett interferometer. Two data sampling solutions will be performed: phase modulation & fast scan strategy. Sky radiation is collected towards the interferometer by an optical setup that allows the field of view, to explore the full 0 ÷ 90° range of elevation angles. With a low spurious polarization instrument, monitoring of polarized atmospheric contribution will be possible.",
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AU - Luzzi, G.

AU - Maoli, R.

AU - Melchiorri, A.

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AU - Villa, F.

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